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} 2 Sheets-Shea L1 Thrashing Machine. I

No. 11,439. Patented Aug. 1, 1854.-

NA PETERS, vhowulhagm hw. whiny. me

- 2 Sheets-Sheet 2.

W. M, PALMER.

Thrashing Machine.

Patented Aug. 1, I854.

this specification, in

WILLIAM M. PALMER, 1 on PALMYBA, MAINE.

ITHRESHING-MACHIINE.

, Specification of Letters Patent No. 11,439, dated August 1, 1854.

To all whom it may concern:

Be it known that I, WILLIAM M. PALMER, of Palmyra, in the county of Somerset and $tate of Maine, have invented a new and useful Improvement on the Machine for Separating Grain from the Straw, called Palmers Separator, and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of which I Figure 1, is a longitudinal section showing its working parts divested of all its framework and connections. A, is the threshing cylinder, B, theconcave, C, a series ofwires projecting from the concave an inch or two above the endless belt or straw carrier D D, to protect it, from the dash of the grain when thrown out by the cylinder A. D, D, an endless belt of slats or lags, for carrying forward the straw and grain. These are made of slate, or rods of wood with the under sides narrowed to a triangular point, and attached to endless. K, is a similar screen to that of I, butplaced more horizontal than I,which position causes an eddy inthe current of wind from the fan,

and renders it more eflicient in cleansing the grain. The tailings and other stufl that passes over the screen I, passes through this on to the inclined board M. L, an inclined plane below the sieve I, having a narrow board projecting up nearly touchingI. M,

an inclined board to recelve whatpasses .through K. N, a fine sieve or screen attached to M, to separate foul or fine seeds from the grain. O, a fine screen which receives the grain as it passes fromthe inclined plane L. f P, a coarse screen which receives what grain slides oif andpasses from the fine screen 0. Q, the fan or blower,

which throws the wind up between I, and L. R, grain box. S, seed box. T, a board to guide the grain into the box. W,0a case or bonnet of zinc or sheet iron around the end ofD,D. a;

Fig. 2, is a longitudinal section of the shoe, detached from the other parts. The references are the same as in the preceding description, with the exception of theshaking apparatus. V, is a pulley, to the shaft of which is attached a crank and to this crank a rod U. Bands passing overpulleys down which the grain is scraped by the slats as they pass down in contact with its surface, into the shoe to be Winnowed. G, is a reel or fan placed above the straw carrier, to keep the straw near the belts and aid in passlng it along to the end of the machine.

H, the platform of the shoe cut into beveled ridges orledges on to which the grain falls from the inclined plane F, and from which it passes on to the sieves or screws to be winnowed. I, is the first sieve or screen, made of sheetzinc, or sheet iron ortin and punched full of round holes, through which the grain passes, falling on the inclined board L, receiving the wind from the fan Q, which passes between the screens I and K, and the board L. U, the rod attached to a pin in the side of the shoe a little above the screen 0, and to the crank at V. There is a rod like this on the other side. The shoe is suspended to the main partof the machine by two small iron rods, on each side, as represented by X, X, Fig. 3. These rods U, by means of the crank motion at V, shake the shoe backward and forward, longitudinally,

and not sidewise as in the ordinary way.

Fig. 3, is an isometrlcal perspectlve new of the machine; reference being the same to grain is scraped down by the returning slats D alongthe inclined plane F, from which it falls upon the platform of the shoe H, from this, it passes on to the screens 1,

and K, and receives the wind from the fan Q, which blows ofi the chaiand. it then dropping through the screensI, and K, falls upon the inclined planesLandMfrom which screening and separating the grain as set it passes on to the finer screens 0 and N forth.

Where it is separated from foul seeds and I then asses into the receivers below R and S. PALMER I c aim- Witnesses: The combination of the screens T, K, N, P, E. HOLMES,

and O, with the chutes M and L, for E. W. KELLY. 

